Cogniaux, A., Goossens, A., Dictionnaire iconographique des orchidees (1896-1907)
Dict. Icon. Orchid.

vol. 4
[Cypripedium]
t. 14
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name cited:
0 Cypripedium tessellatum x porphyreum -
drawing: A. Goossens
family: Orchidaceae
subfamily: Cypripedioideae
epithet:

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